James Joules The physicist James Joules, after we we call after him the unit of work was the first to demonstrate that heat energy and mechanical energy are really equivalent.

物理学家，我们以他命名功的单位,他是第一个演示出,热能和机械能相等的人。

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Mechanical design of stabilized platform unit is one of the key techniques in the rotary steering drilling tool.

稳定平台单元机械系统的设计是旋转导向钻井工具的关键和难点之一。

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This unit group also includes mechanical repairers who perform major repairs and replacement of mechanical units on newly assembled motor vehicles.

此单元组还包括机械修理工，进行大修和更换新组装的汽车机械单位。

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Six of them were admitted to the intensive care unit and four required mechanical ventilation.

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The innovation works by sending electronic signals from the steering wheel to a computerised unit that then controls the movement of the tyres, rather than using mechanical links.

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